21. Typical fast neutron detectors are liquid scintillators, 4-He based noble gas detectors and plastic detectors. 22. That will avoid the background noise caused by thermal and fast neutrons and gamma rays. 23. Manley, one the attendees, was tasked with learning more about the properties of fast neutrons . 24. Fast neutron therapy utilizes high energy neutrons typically greater than 20 MeV to treat cancer.25. The most common is thorium, which absorbs a fast neutron and decays into Uranium 233. 26. A few reactors ( fast neutron reactors ) and all nuclear weapons rely on fast neutrons . 27. A few reactors ( fast neutron reactors ) and all nuclear weapons rely on fast neutrons. 28. A different model called the displacement spike was proposed for fast neutron bombardment of heavy elements. 29. In all moderated reactors, some neutrons of all energy levels will produce fission, including fast neutrons . 30. These fast neutrons do not cause fission as readily as slower ( less energetic ) ones.
